Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:05 2012

Optimize a model with 1 rows, 21 columns and 21 nonzeros
Model has 107 quadratic objective terms
Modified 21 Q diagonals
Presolve time: 0.01s
Presolved: 1 rows, 21 columns, 21 nonzeros
Presolved model has 128 quadratic objective terms
Variable types: 0 continuous, 21 integer (21 binary)
Found heuristic solution: objective 58.0000000

Root relaxation: objective 0.000000e+00, 23 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0   21   58.00000    0.00000   100%     -    0s
H    0     0                      55.0000000    0.00000   100%     -    0s
H    0     0                      48.0000000    0.00000   100%     -    0s
H    0     0                      46.0000000    0.00000   100%     -    0s
     0     2    3.13093    0   21   46.00000    3.13093  93.2%     -    0s
H    6     6                      44.0000000    5.74991  86.9%   1.7    0s
H   19    19                      42.0000000    5.74991  86.3%   1.9    0s
H  708   381                      40.0000000   16.00952  60.0%   2.0    0s

Explored 8126 nodes (16430 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+01, best bound 4.000000000000e+01, gap 0.0%